吊笼内电焊作业时,应做好绝缘保护,不允许用吊笼的()作为接地线使用。

题型:填空题

问题:

吊笼内电焊作业时,应做好绝缘保护,不允许用吊笼的()作为接地线使用。

考点:机械员机械员综合练习机械员综合练习题库
题型:填空题

第二节 根据对话内容,从对话后的选项中选出能填入空白处的最佳选项,并在答题卡上将该项涂黑。选项中由两项为多余选项。

—Any good news?

—Not really.  61 So I was left behind after school yesterday.

  62 

—Sometimes I do. The day before yesterday, I was quiet in my history class but I still had to stay after school.

  63

—Because I fell asleep. But it wasn’t my fault.  64  

—I advise you to take school more seriously. If you don’t pass your exam, you will have to drop out and work as a result.

  65  If I have a job, I have to do dull work every day. But now I am in school, I must listen to dull teachers every day.

—Something must be wrong with you. Go to the psychologist first.

A.You are lazy.

B.I don’t understand.

C.You made your teacher angry.

D.Better keep quiet in class.E. The lesson is dull.

F. I don’t think it makes much difference.

G. I was talking without being asked in class.

题型:填空题

—_____doctors will be chosen to volunteer in the medical project.

—Really? I hope I’ll be one of them.

A. Thousand of         B. One thousands of   C. One thousand

题型:填空题

关于产褥期血液系统变化,下列哪项是正确的

A.血沉于产后1~2周降至正常

B.红细胞计数及血红蛋白值逐渐增多

C.产褥早期,白细胞总数达40×109个/升,中性白细胞增多

D.产褥早期血液即转为低凝状态

E.纤维蛋白原、凝血酶于产后3~4周内降至正常

题型:填空题

如何确定RC4切丝机刀辊的转速?

题型:填空题

川芎在酸枣仁汤中的作用是()

A.活血化瘀

B.活血行气

C.疏达肝气

D.活血祛风

E.祛风止痛

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